21926990

素因数分解:

$2^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{50993}}^1$

素因数の和:51043

約数の個数: 16

約数和(自身を含む): 40387248

約数和(自身を除く): 18460258

約数列:

[1, 2, 5, 10, 43, 86, 215, 430, 50993, 101986, 254965, 509930, 2192699, 4385398, 10963495, 21926990]

約数ペア:

[(1, 21926990), (2, 10963495), (5, 4385398), (10, 2192699), (43, 509930), (86, 254965), (215, 101986), (430, 50993)]